📶 Friis Transmission Equation

Power received by an antenna under free‑space conditions: \( P_r = P_t G_t G_r \left(\frac{\lambda}{4\pi R}\right)^2 \)

Transmit Power P_t (W): Transmit Antenna Gain G_t (linear): Receive Antenna Gain G_r (linear): Frequency (MHz): Distance R (m):

P_r: 0.00 W

P_r (dBm): -∞ dBm

Path loss: 0.00 dB

λ = c / f, with c = 299,792,458 m/s. Gains are linear ratios.